JP2015112903A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle that can secure sealability between a case opening and a duct while eliminating a packing material.SOLUTION: The air conditioner for a vehicle is configured to have: a case 2 that is formed so that an opening face of a heat opening 2f for outputting outside conditioned air generated inside is nonparallel to an outer surface 10; a duct cover 20 that is connected to the heat opening 2f and forms a heat flow path 2f1 for the conditioned air in cooperation with the outer surface 10; a connection portion 30 that connects the heat opening 2f and the duct cover 20 by fitting the fitting protruding portion 31 to a fitting recessed portion 32 in a connecting direction of the heat opening 2f; and a regulating portion 40 that regulates movement of the duct cover 20 in a direction of releasing the fitting in the connection portion 30.

Description

  The present invention relates to a vehicle air conditioner.

  In the vehicle air conditioner, air taken in the case is cooled by an evaporator, and this is heated and adjusted by a heater core to generate conditioned air. The case is formed with an opening for outputting the conditioned air generated inside to the outside, and the conditioned air is supplied to the vehicle interior via the opening.

  Incidentally, a plurality of openings (for example, a defroster opening, a vent opening, a heat opening, etc.) are formed in the vehicle air conditioner, and a duct (for example, a defroster) that distributes conditioned air from the plurality of openings. Some have a duct, a vent duct, a heat duct, etc.).

  Patent Document 1 below discloses a vehicle air conditioner including a defroster duct, a vent duct, and a heat duct. These ducts are connected to a plurality of openings formed in the case. For example, a cylindrical rear vent duct 22b is connected to the discharge opening 51 shown in FIG.

JP 2012-40960 A

  By the way, conventionally, a packing material is disposed at a connection portion between an opening formed in a case and a duct, and leakage of air-conditioned air is prevented by tapping or the like. Therefore, there are problems that the man-hours for connecting the opening and the duct are large and cumbersome, the number of parts is large, and the cost is increased. However, if the packing material is simply abolished, air-conditioning air leaks.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a vehicle air conditioner that can ensure the sealing performance between the case opening and the duct while eliminating the packing material.

  In order to solve the above problems, the present invention provides a case in which an opening surface of an opening that outputs internally generated conditioned air to the outside is formed non-parallel to the outer surface, and is connected to the opening. And a duct cover that forms a flow path of the conditioned air in cooperation with the outer surface, and a fitting convex portion and a fitting concave portion are fitted in the connection direction of the opening portion, and the opening portion and the A vehicle air conditioner having a connecting portion that connects a duct cover and a restricting portion that restricts movement of the duct cover in a direction in which the fitting at the connecting portion is released is adopted.

  Further, in the present invention, the connecting portion extends over the two sides of the opening erected from the outer surface and the one side of the opening spaced from the outer surface. A configuration is adopted in which the fitting recess is fitted.

  Moreover, in this invention, the structure that the two sides of the said opening part standingly arranged from the said outer surface have an inclination part inclined with respect to the said outer surface is employ | adopted.

  Further, in the present invention, one side of the opening that is separated from the outer surface has a second inclined portion that is inclined toward the upstream side in the flow direction of the conditioned air toward the center from both widthwise ends of the opening. The configuration is adopted.

  In the present invention, the restricting portion includes an engaging portion that is erected from the outer surface and engages with an end surface of the duct cover facing in a direction opposite to a side connected to the opening in the connection direction. The structure of having is adopted.

  Moreover, in this invention, the structure that the direction which engages / releases the said duct cover and the said engaging part is a direction which cross | intersects the said connection direction is employ | adopted.

In this invention, the opening part of a case and a duct cover are connected by a fitting convex part and a fitting recessed part fitting in an opening part. By fitting the fitting convex portion and the fitting concave portion, the connecting portion is intricately structured, and the leakage of the conditioned air flowing inside is suppressed. Further, by restricting the movement of the duct cover in the direction in which the fitting is released by the restricting portion, the fitting state in the connecting portion can be maintained, and the sealing performance can be secured.
Thus, according to this invention, the vehicle air conditioner which can ensure the sealing performance of a case opening part and a duct is obtained, eliminating a packing material.

It is sectional drawing which shows schematic structure of the air conditioning apparatus for vehicles in embodiment of this invention. It is a figure which shows the attachment structure of the duct cover with respect to the case in embodiment of this invention. It is a disassembled perspective view which shows the attachment structure of the duct cover with respect to the case in embodiment of this invention. It is a figure which shows the attachment structure of the duct cover with respect to the case in another embodiment of this invention.

  Hereinafter, an embodiment of a vehicle air conditioner according to the present invention will be described with reference to the drawings. In the following drawings, the scale of each member is appropriately changed in order to make each member a recognizable size. In the following description, an XYZ orthogonal coordinate system is set, and the positional relationship of each member may be described with reference to this XYZ orthogonal coordinate system. A predetermined direction in the horizontal plane is defined as an X-axis direction, a direction orthogonal to the X-axis direction in the horizontal plane is defined as a Y-axis direction, and a direction orthogonal to each of the X-axis direction and the Y-axis direction (that is, a vertical direction) is defined as a Z-axis direction.

FIG. 1 is a cross-sectional view showing a schematic configuration of a vehicle air conditioner 1 according to an embodiment of the present invention.
As shown in FIG. 1, the vehicle air conditioner 1 of the present embodiment includes a case 2, an evaporator 3, a heater core 4, an air mix door 5, a rotary door 6, and a plate door 7. .

  The case 2 forms the outer shape of the vehicle air conditioner 1, and the cooling channel 2a in which the evaporator 3 is installed, the heating channel 2b in which the heater core 4 is installed, and cold air and warm air are mixed and air-conditioned. It has a mixing portion 2c that is made into wind. The case 2 is provided with a plurality of openings (defroster opening 2d, vent opening 2e, and heat opening 2f) that are exposed to the outside and communicate with the mixing portion 2c. A duct cover 20 described later is connected to the heat opening 2f.

  The defroster opening 2d is an opening for supplying conditioned air to the window. The vent opening 2e is an opening for supplying conditioned air to the passenger's face. The heat opening 2f is an opening for supplying conditioned air to the feet of the passenger. Further, inside the case 2, a warm air opening 2g for supplying warm air from the heating channel 2b in which the heater core 4 is installed to the mixing unit 2c, and a cooling channel 2a in which the evaporator 3 is installed in the mixing unit A cold air opening 2h for supplying cold air to 2c and a heating opening 2i for supplying cold air from the cooling channel 2a to the heating channel 2b are provided. In addition, the code | symbol 18 is a guide which guides the warm air which distribute | circulates the heating flow path 2b to the mixing part 2c.

The evaporator 3 is a part of the refrigeration cycle mounted on the vehicle, and is disposed inside the cooling flow path 2a. The evaporator 3 cools the air supplied into the cooling flow path 2a by a blower (not shown) and generates cold air.
The heater core 4 is disposed inside the heating flow path 2b, and generates warm air by heating the cold air supplied through the heating opening 2i.

  The air mix door 5 is arranged on the downstream side of the evaporator 3 and adjusts the supply amount of the cold air generated by the evaporator 3 to the heating flow path 2b. More specifically, the air mix door 5 includes a rack (not shown), and slides between the cold air opening 2h and the heating opening 2i by rotating the pinion 5a, and the cold air opening 2h and the heating opening. The amount of cold air supplied to the heating channel 2b is adjusted by adjusting the opening ratio with 2i. As a result, the mixing ratio of the cool air and the warm air in the mixing unit 2c is adjusted, and the temperature of the conditioned air is adjusted.

The rotary door 6 can be rotated by the mixing unit 2c, and adjusts the air distribution ratio toward the vent opening 2e and the air distribution ratio toward the heat opening 2f according to the rotation angle. is there.
The plate door 7 can be rotated in the middle of the flow path downstream of the rotary door 6 on the vent opening 2e side, and the air distribution ratio toward the defroster opening 2d and the vent opening 2e according to the rotation angle. It adjusts the air distribution ratio toward the.

  The air mix door 5, the rotary door 6, and the plate door 7 are driven by a motor (not shown). Moreover, the air mix door 5, the rotary door 6, and the plate door 7 have the sealing member 8 in the part contact | abutted with the case 2, and prevent the air leak of an air-conditioning wind.

Next, the attachment structure of the duct cover 20 to the case 2 of the vehicle air conditioner 1 will be described with additional reference to FIGS. 2 and 3.
FIG. 2 is a view showing a structure for attaching the duct cover 20 to the case 2 in the embodiment of the present invention. FIG. 2A is a diagram corresponding to the arrow A shown in FIG. FIG.2 (b) is a figure corresponding to the arrow BB cross section shown to Fig.2 (a). FIG. 3 is an exploded perspective view showing a structure for attaching the duct cover 20 to the case 2 in the embodiment of the present invention.

  As shown in FIG. 1, the case 2 has a heat opening 2 f that outputs the conditioned air generated inside to the outside. The heat opening 2 f is formed in a direction along the outer surface 10 of the case 2 (Z-axis direction). The outer surface 10 of the present embodiment is a surface extending in the vertical direction, and the opening direction (connection direction) of the heat opening 2f is set in the vertical direction. For this reason, the conditioned air flowing through the heat opening 2f flows out from the top to the bottom.

  As shown in FIG. 3, the heat opening 2 f opens in a substantially rectangular shape. An opening surface 100 (shown by a dotted line in FIG. 3) of the heat opening 2f is formed to be non-parallel to the outer surface 10 (in the present embodiment, an inclined surface inclined at a predetermined angle). The heat opening 2 f has two sides 11 standing from the outer surface 10 and one side 12 spaced from the outer surface 10, and a side parallel to the one side 12 is formed by the outer surface 10. . The two sides 11 of the heat opening 2f are parallel to each other, and are provided at a predetermined interval in the width direction (Y-axis direction) of the heat opening 2f. One side 12 of the heat opening 2f is a side that connects two sides 11 provided at intervals.

  As shown in FIGS. 2A and 3, the case 2 in which the heat opening 2 f is formed has a dividing surface 16 that can be divided into a first member 14 and a second member 15. The dividing surface 16 is a combined surface of the first member 14 and the second member 15, and is formed along the XZ plane. The first member 14 and the second member 15 are resin molded parts, and the die cutting direction is set in the Y-axis direction. For this reason, the heat opening 2f of the present embodiment is resin-molded by different molds on the left and right.

  As shown in FIG. 2A, the duct cover 20 is connected to the heat opening 2f. As shown in FIG. 1, the duct cover 20 is configured to form a heat flow path 2 f 1 for conditioned air in cooperation with the outer surface 10. The heat flow path 2f1 is a flow path that communicates with the foot of the passenger. The duct cover 20 has an inlet portion 21 into which conditioned air flows from the heat opening 2f and an outlet portion 22 from which conditioned air flows from the inlet portion 21 flows out.

  As shown in FIG. 2A, the inlet portion 21 has a size corresponding to the heat opening 2f and has a substantially U-shaped cross-sectional shape. The inlet portion 21 forms an opening in cooperation with the outer surface 10. In contrast to the single outlet 21, three outlets 22 are provided in the present embodiment. As shown in FIG. 1, the outlet portion 22a that opens in the same direction as the inlet portion 21 has a substantially cylindrical shape, and forms an opening alone. On the other hand, the outlet portions 22b on both sides that open in a direction different from the inlet portion 21 (obliquely with respect to the connecting direction of the inlet portion 21) have a substantially U-shaped cross-sectional shape as shown in FIG. . The outlet portion 22 b forms an opening in cooperation with the outer surface 10.

  As shown in FIG. 1, the vehicle air conditioner 1 includes a connection portion 30 that connects the heat opening 2 f and the duct cover 20. The connection part 30 has the fitting convex part 31 and the fitting recessed part 32, and makes both fit in the connection direction (Z-axis direction) of the heat opening part 2f, and the heat opening part 2f and the duct cover 20 are connected. It comes to connect. The fit between the fitting convex part 31 and the fitting concave part 32 may be any of a clearance fit, an interference fit and an intermediate fit. It is preferable that the size is slightly larger than the size of the portion 31 to provide a clearance fit. Note that no packing material or the like is disposed between the fitting convex portion 31 and the fitting concave portion 32.

  As shown in FIG. 3, the connection portion 30 is fitted over the two sides 11 of the heat opening 2 f standing from the outer surface 10 and the one side 12 of the heat opening 2 f spaced from the outer surface 10. The convex portion 31 and the fitting concave portion 32 are fitted together. In this embodiment, the fitting convex part 31 is provided in the heat opening part 2f side, and the fitting concave part 32 is provided in the duct cover 20 side. The fitting convex part 31 is formed in a substantially U shape over the two sides 11 and one side 12 of the heat opening 2f. The fitting recess 32 is similarly formed in a substantially U shape in the inlet portion 21 having a male-female shape with the shape of the heat opening 2 f of the duct cover 20.

  As shown in FIG. 3, the two sides 11 of the heat opening 2 f erected from the outer surface 10 have inclined portions 13 that are inclined with respect to the outer surface 10. That is, the two sides 11 of the heat opening 2f are erected in a direction perpendicular to the outer surface 10 and are formed with a certain width in the Z-axis direction. This inclined portion 13 is also provided with a fitting convex portion 31. As shown in FIG. 1, in the inclined portion 13, the fitting convex portion 31 and the fitting concave portion 32 are fitted with a constant width in the Z-axis direction. It comes to match.

  As shown in FIG. 1, in one side 12 of the heat opening 2 f, the fitting convex part 31 and the fitting concave part 32 are fitted to each other, so that the duct cover is perpendicular to the outer surface 10 (X-axis direction). 20 movements are restricted. In addition, in the two sides 11 of the heat opening 2f, the fitting convex portion 31 and the fitting concave portion 32 are fitted, whereby the duct cover 20 moves in the width direction (Y-axis direction) along the outer surface 10. Be regulated. Thus, in the connection part 30, the movement of the duct cover 20 in the X-axis direction and the Y-axis direction is restricted.

  As shown in FIG. 1, the vehicle air conditioner 1 includes a restricting portion 40 that restricts the movement of the duct cover 20 in the direction in which the fitting at the connection portion 30 is released (Z-axis direction). The restricting portion 40 stands from the outer surface 10 and engages with the end surface 24 of the duct cover 20 facing the side opposite to the side connected to the heat opening 2f in the connecting direction (Z-axis direction). 41. The end surface 24 is a surface disposed on the back side of the outlet portion 22a, and extends in the width direction (Y-axis direction). On the other hand, as shown in FIG. 3, the first engaging portion 41 also extends linearly in the width direction (Y-axis direction) and engages with the end surface 24 across the width direction. .

  As shown in FIGS. 2A and 3, the restricting portion 40 has a second engaging portion 42. The second engaging part 42 is formed obliquely along the outlet part 22b. Both end portions of the first engagement portion 41 have parallel portions 41 a parallel to the second engagement portion 42. The parallel part 41a and the second engaging part 42 of the first engaging part 41 are engaged with both side surfaces of the outlet part 22b of the duct cover 20 as shown in FIG. A path 2f1 is formed. The first engagement portion 41 and the second engagement portion 42 are erected in the X-axis direction, and the direction of engagement / disengagement with the duct cover 20 is the connection direction of the heat opening 2f ( It is a direction (direction along the engagement surface (X-axis direction)) intersecting with the (Z-axis direction).

  As shown in FIG. 2A, the vehicle air conditioner 1 has a fixing portion 50 that prevents the engagement of the restricting portion 40 from being released. The fixing part 50 fixes the side opposite to the side connected to the heat opening 2 f of the duct cover 20 to the case 2. As shown in FIG. 3, the fixing portion 50 includes a claw portion 51 provided on the duct cover 20 side and a mounting hole 52 provided on the case 2 side. The claw portion 51 is integrally formed with the duct cover 20 and has a hook shape such that the tip end portion is caught inside the attachment hole 52. The fixing portion 50 prevents the engagement of the restricting portion 40 from being released by bringing the case 2 and the duct cover 20 into a claw-fitting state. In addition, in the fixing | fixed part 50, the structure fixed to a screw instead of the nail | claw part 51 may be employ | adopted.

  Then, the effect | action of the air conditioning apparatus 1 for vehicles of the said structure is demonstrated.

  As shown in FIG. 1, when the conditioned air generated inside the case 2 is supplied to the feet of the occupant, the rotary door 6 is operated to connect the mixing unit 2 c and the heat opening 2 f. The duct cover 20 is connected to the heat opening 2f, and the conditioned air flowing out of the heat opening 2f flows through the heat flow path 2f1 inside the duct cover 20 and is supplied to the feet of the passengers.

  The heat flow path 2f1 is formed by the duct cover 20 and the outer surface 10. In the conventional type in which the cylindrical duct is connected to the heat opening portion 2f, a gap (dead space) is formed between the cylindrical duct and the outer surface 10, but according to this configuration, the heat is compared with the conventional type. The flow path width of the flow path 2f1 can be increased in the X-axis direction, and the amount of resin used to form the duct passage can be reduced as compared with the cylindrical duct. Thereby, it can contribute to size reduction in the X-axis direction of the case 2, weight reduction, and cost reduction.

  The duct cover 20 is attached to the case 2 as shown in FIG. First, on one side 12 of the heat opening 2f, the fitting convex portion 31 provided in the heat opening 2f and the fitting concave portion 32 provided in the duct cover 20 are semi-fitted diagonally. Next, the duct cover 20 is rotated using the one side 12 of the heat opening 2f as a rotation axis. By this rotation, the fitting convex portion 31 provided in the heat opening portion 2f and the fitting concave portion 32 provided in the duct cover 20 are fitted on one side 12 of the heat opening portion 2f as shown in FIG. At the same time, on the two sides 11 of the heat opening 2f, the fitting protrusion 31 provided in the heat opening 2f and the fitting recess 32 provided in the duct cover 20 are fitted.

Further, by this rotation, the first engaging portion 41 and the end surface 24 of the duct cover 20 are engaged with each other in the restricting portion 40. Further, the second engaging portion 42 and the parallel portion 41 a of the first engaging portion 41 engage with both sides of the outlet portion 22 b of the duct cover 20. When the duct cover 20 comes into contact with the outer surface 10, the claw portion 51 enters the attachment hole 52, and the engagement release at the restricting portion 40 is prevented.
Thus, the attachment of the duct cover 20 to the case 2 is completed.

  In the present embodiment, the heat opening 2f and the duct cover 20 of the case 2 are connected to the fitting protrusion 31 and the fitting recess in the connecting direction (Z-axis direction) of the heat opening 2f as shown in FIG. 32 is connected by fitting. When the fitting convex portion 31 and the fitting concave portion 32 are fitted, the mating surface of the heat opening 2f and the duct cover 20 has a shape with unevenness. As a result, it becomes difficult for the conditioned air flowing through the heat flow path 2f1 to flow out from the joint at the connecting portion 30, and leakage of the conditioned air can be suppressed without arranging a packing material. Further, by restricting the movement of the duct cover 20 in the direction (Z-axis direction) in which the duct cover 20 is released by the restricting portion 40, it is possible to maintain the fitting state in the connecting portion 30 and ensure the sealing performance. it can.

  Further, in the present embodiment, as shown in FIG. 3, over the two sides 11 of the heat opening 2 f erected from the outer surface 10 and the one side 12 of the heat opening 2 f separated from the outer surface 10, The fitting convex part 31 and the fitting concave part 32 are fitted. According to this configuration, as shown in FIG. 2, the movement of the duct cover 20 in the direction perpendicular to the outer surface 10 (X-axis direction) and in the width direction along the outer surface 10 (Y-axis direction) can be restricted. . In the present embodiment, the two sides 11 of the heat opening 2f have inclined portions 13 that are inclined with respect to the outer surface 10, and as shown in FIG. 32 is fitted with a constant width in the Z-axis direction, so that the movement of the duct cover 20 in the Y-axis direction can be reliably restricted. Further, by providing the inclined portion 13 so that the two sides 11 of the heat opening 2f face outward, it becomes possible to perform molding without using a complicated mold during resin molding.

  Further, in the present embodiment, the restricting portion 40 is erected from the outer surface 10 and in the connection direction (Z-axis direction) with the end face 24 of the duct cover 20 facing the side opposite to the side connected to the heat opening 2f. It has the 1st engaging part 41 to engage. According to this configuration, since the movement of the duct cover 20 in the X-axis direction and the Y-axis direction can be restricted in the connection part 30 and the movement of the duct cover 20 in the Z-axis direction can be restricted in the restriction part 40, all The movement of the duct cover 20 in the direction can be restricted, and the direction in which the duct cover 20 and the first engagement portion 41 are engaged / disengaged is the direction intersecting the connection direction. The structure for preventing the duct cover 20 from rising up can be minimized.

  Thus, according to the above-described embodiment, the case 2 in which the opening surface 100 of the heat opening 2f that outputs the internally generated conditioned air to the outside is formed non-parallel to the outer surface 10; The duct cover 20 that is connected to the heat opening 2f and forms the heat flow path 2f1 of the conditioned air in cooperation with the outer surface 10, and the fitting convex part 31 and the fitting concave part 32 in the connecting direction of the heat opening part 2f. And connecting part 30 for connecting heat opening 2f and duct cover 20 and restricting part 40 for restricting movement of duct cover 20 in the direction in which the fitting at connection part 30 is released. By adopting the configuration, the vehicle air conditioner 1 that can secure the sealing performance between the heat opening 2f and the duct cover 20 while eliminating the packing material is obtained.

  As mentioned above, although preferred embodiment of this invention was described referring drawings, this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

For example, the present invention can employ a modification as shown in FIG.
FIG. 4 is a diagram showing a structure for attaching the duct cover 20 to the case 2 in another embodiment of the present invention. FIG. 4 is a view corresponding to the arrow A shown in FIG. 1, similarly to FIG. In the following description, the same or equivalent components as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

  As shown in FIG. 4, in another embodiment, the fixing portion 50 is configured to fix the duct cover 20 to the case 2 using a screw member 53. Further, in another embodiment, one side 12 of the heat opening 2f spaced from the outer surface 10 is upstream in the flow direction of the conditioned air from both ends in the width direction (Y-axis direction) of the heat opening 2f toward the center (FIG. 4). The second inclined portion 17 is inclined to the upper side of the drawing. For this reason, the one side 12 of the heat opening 2f of another embodiment forms a substantially V-shaped groove that is convex toward the upstream side in the flow direction of the conditioned air. Further, the duct cover 20 of another embodiment corresponds to the shape of one side 12 of the heat opening 2f, and forms a substantially V-shaped mountain shape that protrudes toward the upstream side in the air flow direction. .

  According to this other embodiment, the case 2 is divided by the dividing surface 16 and the moldability when the first member 14 and the second member 15 are resin-molded is improved. That is, as described above, the first member 14 and the second member 15 are resin molded parts, and the die cutting direction is set in the Y-axis direction. Therefore, as shown in FIG. 2A of the above embodiment, one side of the heat opening 2f is formed as shown in FIG. 4 of another embodiment, rather than when one side 12 of the heat opening 2f is linearly molded. In the case where the second inclined portion 17 is provided in the mold 12 and is formed into an inclined shape, the mold can be easily removed and the moldability can be improved.

  For example, in the above embodiment, the example in which the present invention is applied to the heat opening 2f has been described. However, the present invention is not limited to this configuration, and other openings provided in the case 2 (for example, the defroster opening) The invention may be applied in 2d, vent opening 2e).

  DESCRIPTION OF SYMBOLS 1 ... Vehicle air conditioner, 2 ... Case, 2f ... Heat opening part (opening part), 2f1 ... Heat flow path (flow path), 10 ... Outer surface, 11 ... Two sides, 12 ... One side, 13 ... Inclined part , 17 ... second inclined part, 20 ... duct cover, 24 ... end face, 30 ... connection part, 31 ... fitting convex part, 32 ... fitting concave part, 40 ... regulating part, 41 ... first engaging part (engagement) Part), 100 ... opening surface

Claims (6)

A case in which the opening surface of the opening that outputs the internally generated conditioned air to the outside is formed non-parallel to the outer surface;
A duct cover that is connected to the opening and forms a flow path of the conditioned air in cooperation with the outer surface;
A connecting portion for connecting the opening and the duct cover by fitting a fitting convex portion and a fitting concave portion in the connecting direction of the opening;
And a restricting portion for restricting movement of the duct cover in a direction in which the fitting at the connecting portion is released.   The connecting portion fits the fitting convex portion and the fitting concave portion across two sides of the opening portion standing from the outer surface and one side of the opening portion separated from the outer surface. The vehicle air conditioner according to claim 1, wherein   3. The vehicle air conditioner according to claim 2, wherein two sides of the opening portion standing from the outer surface have inclined portions inclined with respect to the outer surface.   The one side of the opening spaced apart from the outer surface has a second inclined portion that is inclined toward the upstream side in the flow direction of the conditioned air from both ends in the width direction toward the center. The vehicle air conditioner according to 2 or 3.   The restricting portion has an engaging portion that is erected from the outer surface and engages with an end surface of the duct cover facing in a direction opposite to a side connected to the opening in the connecting direction. The air conditioning apparatus for vehicles as described in any one of Claims 1-4.   The vehicle air conditioner according to claim 5, wherein a direction in which the duct cover and the engagement portion are engaged / disengaged is a direction that intersects the connection direction.

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